The Bears hosted Santos and WR Alex Wesley for visits on Saturday, according to Albert Breer.
Santos, 28, wound up signing on with the Chiefs as an undrafted free agent out of Tulane back in 2014. He returned to the Chiefs on a one-year restricted deal worth $1.797 million.
Kansas City elected to place him on injured reserve with a groin strain at the start of the 2017 season and cut him loose with a settlement soon after. He would go on to have brief stints with the Bears, Rams, Jets and Buccaneers before the Titans signed him to a contract last year.
Santos last just over a month in Tennessee.
In 2019, Santos appeared in five games for the Titans and converted 4 of 9 field goal attempts and all 12 of his extra point tries.